This is nice vintage Miami Florida Super Power Chamber mouthpiece for baritone saxophone, facing M7. Aside from just a little bit of typical cosmetic wear around the body of the mouthpiece it is physically in great shape. The facing is also in nice original condition. The rails, table and tip are all very clean and show no major wear or signs past alterations. These Super Power Chambers have medium small chambers with a subtle drop down baffle and a shallow floor. This allows the mouthpiece to be played with a fair amount of brilliance and edge, projection is also quite exceptional. A great mouthpiece with a fair amount of cutting power.